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Actual Lack Of Reserve Level 3 (LOR3) in the South Australia Region - Wednesday, 8 February 2017.
Actual Lack Of Reserve Level 3 (LOR3) in the South Australia Region - Wednesday, 8 February 2017.
Under the NER Cl 4.8.4(d), AEMO considers that Customer load is actually being interrupted in order to maintain or restore the security of the power system in South Australia Region.
An Actual LOR3 condition has been declared for the South Australia region from 1803 hrs.
The Actual LOR3 condition is forecast to exist until 1930 hrs
The maximum load is being interrupted is 100 MW at 1803 hrs Wednesday, 8 February 2017
Manager NEM Real Time Operations
Change to FCAS Regulation constraint equations for managing time error
Change to FCAS Regulation constraint equations for managing time error
AEMO is changing the way the FCAS constraint equations work for automatically increasing the regulation when the time error exceeds 1.5s in the Mainland. Currently the regulation is required from all NEM regions when there is a Mainland (NSW, Qld, SA and Victoria) time error.
The change to be made is to set the FCAS regulation requirements for Mainland regions only when there is a Mainland time error exceedance.
The FCAS requirements from all NEM regions of 120 MW lower regulation and 130 MW raise regulation has not changed.
The calculation for the regulation is detailed in SO_OP3715, section 19.
This change will take effect at 1700 hrs on 25 October 2016.
Ben Blake
AEMO Operations
Updates to Victorian system normal stability constraint equations
The Victorian system normal constraint equations that determine Victorian export limits based on transient stability and voltage stability at Heywood for Victoria to South Australia flows will be updated to a revised formulation on 25 July 2016 after 1330 hrs. This revised formulation models the effects of higher flows on Victoria to SA on Heywood and the new series capacitors at Black Range.
The changes are to the following constraint equations :
V::N_NIL_V1
V::N_NIL_V2
V::N_NIL_Q1
V::N_NIL_Q2
V::N_NIL_S1
V::N_NIL_S2
V::N_NIL_SD
V^S_HYCP
Ben Blake
AEMO Operations